Update release notes wrt #2215

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -1165,6 +1165,14 @@ Xiang Zhang (zhangyangyu@github)
     Collections
   (2.12.0)
 
+David Nelson (eatdrinksleepcode@github)
+  * Requested #2215: Support `BigInteger` and `BigDecimal` creators in `StdValueInstantiator`
+  (2.12.0)
+
+Tiago Martins (upsidedownsmile@github)
+  * Contributed #2215: Support `BigInteger` and `BigDecimal` creators in `StdValueInstantiator`
+  (2.12.0)
+
 Yona Appletree (Yona-Appletree@github)
   * Reported #2283: `JsonProperty.Access.READ_ONLY` fails with collections when a
     property name is specified

release-notes/VERSION-2.x

@@ -26,6 +26,8 @@ Project: jackson-databind
 #2113: Add `CoercionConfig[s]` mechanism for configuring allowed coercions
 #2118: `JsonProperty.Access.READ_ONLY` does not work with "getter-as-setter" `Collection`s
  (reported by Xiang Z)
+#2215: Support `BigInteger` and `BigDecimal` creators in `StdValueInstantiator`
+ (requested by David N, implementation contributed by Tiago M)
 #2283: `JsonProperty.Access.READ_ONLY` fails with collections when a property name is specified
  (reported by Yona A)
 #2644: `BigDecimal` precision not retained for polymorphic deserialization